/*
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 */

package sgmi.util;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.hibernate.SessionFactory;

/**
 *
 * @author HugoCesar
 */
public class ConexaoHibernateFilter implements Filter{

    private SessionFactory sf;
    
    @Override
    public void init(FilterConfig config) throws ServletException {
        this.sf =HibernateUtil.getSessionFactory();
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        
        try {
            this.sf.getCurrentSession().beginTransaction();
            chain.doFilter(request, response);
            this.sf.getCurrentSession().getTransaction().commit();
            this.sf.getCurrentSession().close();
        
        } catch (Throwable ex) {
            try {
                if(this.sf.getCurrentSession().getTransaction().isActive()){
                    this.sf.getCurrentSession().getTransaction().rollback();
                } 
            } catch (Throwable t) {
                t.printStackTrace();
            }
            throw new ServletException();
        
        }
        
    }

    @Override
    public void destroy() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
    
}
